aclm/((nickel and hydride and battery) or (((ni and h) or nih) and battery)) AND aclm/(software and (design$ or model$ or simulat$))
1
0
Infinity%
aclm/((nickel and hydride and battery) or (((ni and h) or nih) and battery)) NOT aclm/(software and (design$ or model$ or simulat$)) AND spec/(software and (design$ or model$ or simulat$))
17
0
Infinity%
NOT aclm/((nickel and hydride and battery) or (((ni and h) or nih) and battery)) AND aclm/(software and (design$ or model$ or simulat$)) AND spec/((nickel and hydride and battery) or (((ni and h) or nih) and battery))